Just snap and use some zip ties for secure the camera, if the tolerances of your printer are not good may be a bit tricky to put in place the holder, in case your tolerances are to high there is a hole in the holder, just use a zip tie to secure the holder.
Tested with a C170 camera was the only one I had available atm. Will work with any web camera with the same shape of the logitech C170 - C270. No tools need it, no camaras take apart need it.
The model its in 2 parts in case you need to move the models individually use the menu "mesh" then "separate connected surfaces" I use simplify3d but I guess similar function must be available in other slicers.
I recommend at least 3 walls outline/perimeters shells same goes for top and button solid layers. Mine was printed with 4.